1998 Ford Contour Owner's Manual - Page 140
1998 Ford Contour Manual
Page 140 highlights
Maintenance and care When adding engine coolant Ford recommends Ford Premium Cooling System Fluid, which is an optimized formula that will protect all metals and rubber elastomers used in Ford engines for four years or 80 000 km (50 000 miles). It is neither necessary nor recommended to use supplemental coolant additives in your gasolinepowered vehicle. These additives may harm your engine coolant system. When you change or add engine coolant, it is important to maintain engine coolant concentration between 40% (-24°C [-11°F]) and 60% (-52°C [-62°F]), depending on your local climate conditions. A coolant concentration below 40% will result in a loss of freeze protection. A concentration above 60% may cause the engine to overheat on a warm day. Refer to Lubricant specifications in the Capacities and specifications chapter. Use only a premium nationally-recognized brand name engine coolant or equivalent. 140